Nope. Since this sentence is inverted, it's tough.
The complete subject is many theories about the Tunguska Fireball.
The complete predicate is there are.
Separate the complete subject and the complete predicate.
There are many theories/ about the Tunguska Fireball.
Is this right?
5 answers
Is this one right.
The most likely theory, perhaps,/called it a comet of tiny pieces of metal.
The most likely theory, perhaps,/called it a comet of tiny pieces of metal.
It's right, except that "perhaps" is an adverb, modifying the verb, "called."
The most likely theory, | perhaps, called it a comet of tiny pieces of metal.
The most likely theory, | perhaps, called it a comet of tiny pieces of metal.
Thank you
You're welcome.